baber/WOPTO huggingface dataset:
Patent GB-2025149-A (GB)
Title: Current limiting devices
IPC: H02H9/02
Filed: 1979-06-06
Abstract: For an alternating current system with phases A, B and C there are two iron-cored saturable reactors (1, 2:3, 4:5, 6) for each phase, each of double-window configuration with an alternating current winding (7 to 12) on the central limb. A superconducting bias winding (31, 32) screened against alternating magnetic flux is in the form of a loop whose parallel sides pass through aligned windows of at least two reactor cores. Airgap magnetic cores 33 and 40 are associated with the bias windings 31 and 32. In the preferred form shown each phase e.g. A has one a.c. winding 7 associated with a first bias winding 31 and the other a.c. winding 8 associated with the second bias winding 32. This design reduces the weight of iron required while avoiding excessive physical dimensions. <IMAGE>
Patent GB-2023936-A (GB)
Title: Hydraulically operated control device
IPC: H01H33/14
Filed: 1979-06-13
Abstract: The device is mainly intended for use in operating an electrical circuit breaker having series-connected switching points which require to be operated simultaneously. The device comprises reversible hydraulic-piston- cylinder arrangements (1) which each control a respective switching point via a switching rod (3), and which are each controlled by a respective control valve (4). The control valves (4) are operated simultaneously by a rigid mechanical connection comprising a cam shaft (7) which is rotated by an hydraulic actuator (8,9,10,11). <IMAGE>
Patent GB-2027148-A (GB)
Title: Improvements in or relating to ducting
IPC: F16L21/08
Filed: 1979-07-23
Abstract: A length of ducting forming part of for example a ventilation system, in a mine or like underground site, the length of ducting includes a cylindrical sleeve 6 of a flexible, air-tight material the ends of which are each provided with an end ring 8, 10, and a cuff portion 12 secured to one end of the sleeve to form a cylindrical extension of that end of the sleeve. A draw-cord 16 is housed within the free end of the cuff portion such that, on location of the other end ring of one length of ducting in the cuff portion 12 of another length of ducting to be adjacent the one end ring of said other length, said draw-cord can be tensioned to bring said cuff portion into sealing contact with said other end ring to effect an air-tight seal between the two lengths of ducting. <IMAGE>
Patent GB-2057673-A (GB)
Title: Inflatable solar heater
IPC: F24S10/70
Filed: 1979-08-31
Abstract: A solar heater is formed as an inflatable structure intended to be floated on a swimming pool for heating the water therein, said structure comprising a flexible upper skin 2 transparent to the sun's rays, and a dark, radiation-absorbent flexible lower skin 3, the skins being bonded together (e.g. around their peripheries and along lines 5), and the lower skin incorporating therein a net (not shown and made e.g. of polyester yarn) of relatively low extensibility so as to resist distortion when the structure is inflated. Stiffening ribs 8 may be secured to the undersurface of the lower skin 3. The skins may be of P.V.C. and the structure may include a pocket containing dessicant or biocidal material to inhibit or reduce algal growth. <IMAGE>
Patent GB-2034787-A (GB)
Title: Conveying apparatus for mud
IPC: E02F3/90
Filed: 1979-09-24
Abstract: An apparatus for conveying mud from great water depths comprises mud-conveying piping B in which is interposed a suction pump D of a pump unit C including a pump E delivering pressurized sea water via a flexible conduit K to nozzles at a suction head L carried by the piping B. The suction mouthpiece of the head L is in the form of a conical screen of which the tip is directed downwardly. The screen is vibrated vertically, and the vibrations are damped relatively to the piping B by a spring damping part F. <IMAGE>
Patent GB-2034719-A (GB)
Title: The Recovery of Enzymes Following Their Use in a Reaction
IPC: C12N11/14
Filed: 1979-11-02
Abstract: The enzyme for use as a catalyst is held in the storage vessel (10) having previously been attached to paramagnetic particles. The enzyme preparation, for example peroxidase on chromic oxide is allowed to flow into the reactor chamber (13) where the reaction process occurs and the paramagnetic particles are then removed from the resulting liquid medium by a high-gradient magnetic separator (15). These particles and the attached enzyme are then returned to the reactor chamber (13) for re-use having been flushed out of the separator (15) by a stream of enzyme preparation flowing through flowline (12) from the storage vessel (10).
Patent GB-2039302-A (GB)
Title: Yarn brakes for shuttleless looms
IPC: D03D47/34
Filed: 1979-11-29
Abstract: In a shuttleless loom a cam 13 pivots a constantly rotating roller 7 against a roller 7' to withdraw yarn through braking discs 24, 24' which are adjustable to provide a minimum pressure and may be rotated by passage of the yarn therethrough and, when the rollers 7, 7' are moved apart by the cam 13, yarn is withdrawn by the inserter and tensioned, during withdrawal and beat-up, by moving together of the discs 24, 24'. The discs may be replaced by leaf springs and have a self cleaning effect. <IMAGE>
Patent GB-2064079-A (GB)
Title: Surface coated copper furnace components
IPC: F27D1/12
Filed: 1979-11-30
Abstract: This invention relates to water- cooled copper furnace components, e.g., tuyeres and coolers, in which the leading end of the component is fusion-coated with a protective copper-chromium alloy. The alloy may also include zirconium, and the coating may be effected by welding or plasma-spraying.
Patent GB-2037316-A (GB)
Title: Process for the preparation of aromatic hydrocarbon mixtures
IPC: C07B61/00
Filed: 1979-12-03
Abstract: A C3/C4 fraction obtained as a by-product in the preparation of aromatic gasoline from synthesis gas over a crystalline aluminium or iron silicate comprising catalyst system, is converted into aromatic gasoline by partial oxidation or partial dehydrogenation followed by conversion over a crystalline aluminium or iron silicate catalyst of the partial oxidation or dehydrogenation product. <IMAGE>
Patent GB-2070819-A (GB)
Title: Automatic control of tap charging apparatus
IPC: G05F1/30
Filed: 1980-02-22
Abstract: An arrangement for controlling the speed and direction of rotation of a DC electric motor in a closed loop servo system used in a tap charging arrangement for stabilizing a mains supply includes a negative feed back circuit around an amplifier which operates so that the motor energising voltage is adjusted to substantially zero when the error signal is within a first predetermined range of values and the energising voltage changes abruptly to a value sufficient to overcome the inertia of the motor when the error signal changes to a second predetermined range of values outside the first predetermined range of values. The armature voltage being derived from the error signal between the stabilized mains supply and a reference supply. <IMAGE>
Patent GB-2058313-A (GB)
Title: Air foil nozzle dryer
IPC: B05B13/02
Filed: 1980-05-01
Abstract: An air foil nozzle dryer for drying web material 4 is provided with two nozzle arrangements 5, 6 disposed in opposed relation so that the web material can travel therebetween. The distance between the nozzles 8 of the two nozzle arrangements and the cross-sectional areas of nozzle orifices are adjustable. <IMAGE>
Patent GB-2063675-A (GB)
Title: Medical reinforcing material
IPC: A61B17/04
Filed: 1980-05-01
Abstract: A material A for use in surgical stitching, repair or prosthesis is produced by tanning a biological tissue, and stabilizing the result in a preservatory solution or under dry conditions. The material A can be used to distribute load produced by sutures 1 in stitching tissue 2. The material may also be in tubular, patch or eyelet form. <IMAGE>
Patent GB-2052579-A (GB)
Title: Apparatus for attaching slide fastener elements to fabric
IPC: A44B19/42
Filed: 1980-05-29
Abstract: Apparatus for feeding and cutting off slide fastener ladder as it is sewn directly to fabric includes on a base plate 70 a pair of parallel blades one of which, the feed or indexing blade 92, is loosely mounted and biased downwardly, and the other of which, the cutter blade, is rigidly mounted so that when the assembly is depressed downwardly to its fullest extent, the feed blade yields and cutter blade severs the ladder. A cam arrangement 160, 150 is provided to drive the assembly in a rectangular path to engage the ladder element-by- element, pulling it through the sewing station, and an override 170 is provided to momentarily stop the back-and-forth movement of the assembly, at which time a depressor 220 urges the assembly downwardly to accomplish the aforesaid severing action. <IMAGE>
Patent GB-2053747-A (GB)
Title: Tool unit for vertical lathes
IPC: B23B29/04
Filed: 1980-06-06
Abstract: The invention relates to a tool unit for vertical lathes comprising a main holder 10 and at least one tool head 20, the main holder having connecting faces 11, and the tool head being inserted in the main holder and secured by a clamping element 30a. The connecting faces of the main holder are at an angle of 45 DEG  to the axis of the tool unit and at an angle of  delta =@-45 DEG  to the cutting edge of the tool. <IMAGE>
Patent GB-2058643-A (GB)
Title: Dry-shaving apparatus
IPC: B26B19/28
Filed: 1980-09-15
Abstract: The reciprocatory cutter (3) of a dry-shaving apparatus is driven by a motor (25) through a vibratory element (20) which with the motor and a common mounting element (34) for the vibratory element and the motor constitutes a unit which can be assembled prior to being mounted in the housing of the apparatus. The vibratory element and the motor are mounted on opposite sides of the mounting element, which consists of a supporting plate and which, in addition to providing means for securing the pre-assembled unit in the housing, also divides the interior of the housing into two sections (38,39) and furthermore serves as a dust seal between the sections. <IMAGE>
Patent GB-2062421-A (GB)
Title: Data extracting circuits; thresholding
IPC: H04L25/06
Filed: 1980-10-24
Abstract: A data extracting circuit includes an input terminal supplied with an input signal (SI) which may be reproduced from a magnetic tape, a delay circuit (50) to produce a delayed input signal (SP), positive and negative peak hold circuits (30, 40) each connected to the input terminal, an adding circuit (RP, RN) for adding positive and negative peak voltages (VP, VN) from the peak hold circuits (30, 40) in a predetermined ratio to produce a threshold voltage (VS), and a level comparator (20) having a first input terminal supplied with the delayed input signal (SD) and a second input terminal supplied with the threshold voltage (VS) and operative to derive a digital binary data signal. The positive and negative peak hold circuits (30, 40) may comprise a higher level priority circuit and a lower level priority circuit, respectively, and may be supplied with the input signal (SI) and a delayed input signal which is further delayed by a second delay circuit following the first-mentioned delay circuit. <IMAGE>
Patent GB-2065629-A (GB)
Title: Catalytic oxidation of gas stream pollutants
IPC: B01J23/38
Filed: 1980-12-18
Abstract: Pollutants in a waste gas stream are oxidized by passing the gas stream through a catalyst bed comprising a layer of oxides of manganese and copper and a separate downstream layer comprising at least one noble metal (e.g. Pd, Pt). An inert layer may be interposed between the two catalyst layers.
Patent GB-2091445-A (GB)
Title: An electrical control circuit for a heating system
IPC: G05D23/24
Filed: 1981-01-20
Abstract: The electrical control circuit is connected in an electrically actuated heating system between one terminal of a conventional time switch and a room thermostat. The control circuit is energised by operation of the time switch and delays the actuation of the heating system in dependence upon a variable such as ambient temperature, so as to avoid the room reaching its set temperature prior to a desired time. The ambient temperature is sensed by a thermistor. The control circuit thus delays actuation of the heating system as the ambient temperature rises, which gives considerable fuel savings.   As described the delay is determined by means of a counter fed by an oscillator whose frequency increases as the sensed temperature drops, thus shortening the delay. Other arrangements are, however, envisaged. Other variables such as wind speed, humidity, and incident solar radiation may alternatively or additionally be used.
Patent GB-2091763-A (GB)
Title: Laminated sintered compositions including boron nitride
IPC: C04B37/02
Filed: 1981-01-23
Abstract: A compound sintered compact for use in a cutting tool having outstanding bonded strength, hardness, wear resistance, plastic deformability and rigidity is obtained by bonding a diamond or cubic boron nitride-containing hard layer to a cemented carbide substrate with interposition of an intermediate bonding layer. A powder for forming said intermediate bonding layer comprising cubic boron nitride in an amount less than 70 volume %, the remainder essentially consisting of a carbide, nitride, carbonitride or boride of a group 4a, 5a, or 6a transition metal, a mixture thereof, or a mutual solid solution compound thereof, after pressing or as powder, is placed upon a thin cemented carbide substrate and on this is placed a powder containing diamond or cubic boron nitride in an amount exceeding 20 volume % after pressing or in the state of powder and the whole then pressed under ultrahigh pressure and at high temperature. <IMAGE>
Patent GB-2092126-A (GB)
Title: Substituted Alkylene Oxides from Substituted Alkylene Carbonates
IPC: C07D301/02
Filed: 1981-01-30
Abstract: Lithium, sodium and potassium fluorides are effective catalysts in a process for the preparation of a substituted ethylene oxide having the formula   <IMAGE> wherein R is an alkyl, aryl, alkaryl or aralkyl group, which may be substituted or unsubstituted, by catalytic thermal decomposition of the corresponding substituted ethylene carbonate having the formula
Patent GB-2095203-A (GB)
Title: Packaging compressible material
IPC: B65B63/02
Filed: 1981-03-12
Abstract: Compressible material, e.g. bonded mineral wool insulation mat, is formed into a roll, the diameter of the roll is reduced and the roll of reduced diameter is confined in wrapping material. In the described embodiment a roll of mat material (10) is placed in a loop (12) in a movable belt (1). The loop (12) is closed by moving roller (4) towards roller (5) and movement of roller (7) transverse to the belt (1) reduces the size of loop (12) and thus the diameter of the roll of material. Reverse movement of belt (1) and feeding of wrapping material between rollers (4) and (5) wraps the roll of material, which can be removed after movement of roller (4) away from roller (5) has reopened loop (12). <IMAGE>
Patent GB-2075221-A (GB)
Title: A gyro autophase system
IPC: G01C19/04
Filed: 1981-03-19
Abstract: Gyro drift is reduced by measuring at 16 the positional (phase) relation between the rotating field of a driving synchronous gyro motor 56 and a reference point on the gyro rotor 8 at start-up. If the relation is outside a prescribed tolerance (determined at 28) excitation is periodically interrupted at 48 for a prescribed time to allow the rotor to slip. This is hastened by dynamic braking of the motor, by the turning on of transistors in a resistor network 62. The interruptions continue until the phase relationship is within tolerance. <IMAGE>
Patent GB-2076643-A (GB)
Title: Windshield wiper connecting pin adaptor
IPC: B60S1/40
Filed: 1981-04-13
Abstract: In a windshield wiper assembly (10), a connecting adaptor (14) converts a center mounted pin connection between a wiper arm (11) and a pressure-distributing yoke (13) to a side mounted pin connection. In assembled position, the connecting adaptor (14) is disposed over the cross rivet (28) within a center open space (20) defined by the yoke (13). The connecting adaptor (14) has deflectable claw elements (42, 43) with tabs (44, 45) which engage the bottoms (48, 49) of the shoulders (22, 23) of the yoke (13) and flanges (54, 55) which engage the tops of the shoulders (22, 23) to fixedly maintain the connecting adaptor (14) in proper assembled position. A connecting pin (33) carried by the connecting adaptor (14) and extending laterally outward therefrom provides a side mounted pin connection for pivotally receiving the terminal end (68) of the wiper arm (11).
Patent GB-2075376-A (GB)
Title: Process and device for centrifugal separation of platelets
IPC: B04B5/04
Filed: 1981-05-05
Abstract: This invention relates to a method and apparatus for the separation of finely divided solid particles dissimilar in size and/or density in a liquid, such as platelets and other blood cells in a blood sample. The separation of, for instance, platelets is accomplished by subjecting the blood sample to centrifugal force in a rotatable chamber while displacing the platelets from the blood sample by injecting a relatively small volume of saline into the centrifugally outer end of the chamber. In a preferred apparatus, the saline is injected via a port (15) into the blood sample by driving a chamber (14) of supporting the blood sample into a saline filled cavity under the influence of centrifugal force. The chamber (14) is formed in a piston (12) slidable in a cylinder (13) which in use is placed in the swinging bucket of a centrifuge. <IMAGE>
Patent GB-2077382-A (GB)
Title: Fire-resistant sleeves
IPC: F16L5/04
Filed: 1981-06-04
Abstract: A pipe or cable 20 passing through an orifice in a fire-resistant wall 10 is surrounded by a sleeve 18 comprising two axially-slidable end pieces 22, which each include a shank 24 and a facing ring 26; an outer lining sleeve 30; and a wrapping of foil encased intumescent strip material 32 which on the outbreak of fire expands to fill the clearance that is necessary to leave around the pipe or cable 20 to facilitate longitudinal movement thereof. One or more cold smoke seals (not shown) may be provided. <IMAGE>
Patent GB-2077215-A (GB)
Title: Scraper units for mine conveyor scraper-chain assemblies
IPC: B65G19/24
Filed: 1981-06-08
Abstract: A scraper unit for a scraper-chain assembly is composed of an elongate scraper bar 10 with reduced height end regions 11 adapted to seat onto horizontal links of a pair of chains. Coupling pieces 12 lie beneath the chain links and are used to clamp the scraper bar 10 to the chain links. The scraper bar has internal pockets 16 which receive inner plate portions 22 of the coupling pieces 12 and bolts are inserted through bores 19, 23 in these portions 22 and the walls of the pockets 16. Each of the coupling pieces 12 also has a pair of upstanding lugs 27, 28, one of which projects through the associated chain link to engage in a blind bore 18 in the under-surface of the associated end region 11 of the scraper bar 10. The other lug 28 of each coupling piece 12 is threaded and engages in another bore 21 in the scraper bar which is open from the upper surface thereof to receive a nut 30. <IMAGE>
Patent GB-2078407-A (GB)
Title: Procedure and apparatus for inter processor data transfer in a multi processor system
IPC: G06F15/163
Filed: 1981-06-11
Abstract: Procedure and apparatus for transferring data between central units or processors in a multi-processor system, said system comprising one or several central units (3) with memories (4). The data to be transferred between central units (3) or processors are separated from their internal bus (6) by means of joint memories (2) and the data transfer between the joint memories (2) is effected by a separate copying means (1). <IMAGE>
Patent GB-2079242-A (GB)
Title: Improvements in or relating to apparatus for applying labels to articles
IPC: B65C9/36
Filed: 1981-07-01
Abstract: A labeling apparatus including a conveyor (10) along which vertical bottles (11) are passed to a label applying station (12) at which a transfer pad (13) having a front suction face to hold the labels thereon is spring (24) urged into the path of the bottles. Labels are fed on to one end of the suction face by a backing strip (35) and a register pin (30) accurately defines the position of the label on the suction face so that the label is applied accurately to the bottle. The pin (30) is depressed when a bottle contacts a label and forces the pad (13) out of its path. A plurality of transfer pads may be mounted on a continuously or intermittently rotating turret. <IMAGE>
Patent GB-2082813-A (GB)
Title: Audible warning system
IPC: G08B3/10
Filed: 1981-07-24
Abstract: A system for generating an audible warning signal has a voltage controlled oscillator controlled by a signal generator whose output periodic signal pattern is preprogrammable to produce a preselected warning signal pattern from the oscillator. The signal is gated through a multiplexer and applied to a number of remote loudspeaker transducer units in a sequence preselected by a clock pulse control of the multiplexer. Alternatively, the signal is transmitted to the transducer units along a common output line together with selected code signals which enable selected ones of the transducer units responsive to the code signals. The power of the warning signal received at each loudspeaker is controlled by a respective attenuator controlled in dependence on ambient light or sound level conditions. <IMAGE>
Patent GB-2080697-A (GB)
Title: Filter dehydrator
IPC: B01J20/281
Filed: 1981-07-27
Abstract: A filter dehydrator for sensing the presence of and separating free water in a transient flow of fluid comprising an inlet and an outlet for the fluid, a mass of water absorptive cellulosic fibers 34 disposed between the inlet and the outlet and surrounded by a rigid porous barrier 35, a filter medium 36 upstream of the absorptive mass for removing solid particles that would block the active surface of the mass and for dispersing water droplets in the fluid. The fibre mass 34 is formed from water-insoluble cross-linked carboxymethyl cellulose fibres which swell in the presence of free water. The barrier 35 may consist of four layers of polyvinyl chloride coated fibre glass mesh screen. <IMAGE>
Patent GB-2107530-A (GB)
Title: Electrical connector for vehicle ignition system
Inventor: RANDALL ERIC MASTERMAN
IPC: H01R4/30
Filed: 1981-10-07
Abstract: An electrical connector for insertion between an ignition coil and distributor to permit the attachment of a test instrument comprises an internally threaded tube 1 and an externally threaded rod 3 which screws into one end of the tube and may be locked by a nut 2. In use, the other end of the tube 1 is screwed onto the negative terminal of the coil, and the distributor and test instrument leads are clipped onto rod 3. <IMAGE>
Patent GB-2092216-A (GB)
Title: Retaining clip
IPC: F16L3/12
Filed: 1981-12-11
Abstract: A clip for holding cables comprises a retaining chamber within walls (5, 6, 7) provided with an entry aperture (8). The aperture is normally closed by walls (9, 10) which overlap and which can be pushed apart to enable a cable to enter the chamber. A spring arm 11 projects into the interior of the retaining chamber to lie resiliently against the cable 16. <IMAGE>
Patent GB-2094712-A (GB)
Title: Collapsible structure and method of building using such a structure
IPC: E02D27/36
Filed: 1982-02-16
Abstract: A collapsible structure which is rigid when dry and is collapsible under the action of a liquid comprises a separating structure (3) whose rigidity is attacked by the liquid, for example water, sandwiched between two sheets of material (1, 2) at least part of the collapsible structure being treated or formed of such a material as to enable the ingress of moisture to be retarded. <IMAGE>